
.top_nav{
    width:100%;
    height:60px;
    z-index: 0;
    background: #EDEDED;
    border-bottom: 1px solid #D9DEE4;

}
.top_nav .top_left_menu{
    width: 60px;
    height: 60px;
    float: left;
    position: relative;
    display: none;
}
.top_nav .top_left_menu a i {
    font-size: 35px;
    position: absolute;
    left: 14px;
    top:12px;
    color: #2A3F54;
}
.top_nav .top_right_menu{
    width:200px;
    height:60px;
    float: right;
    position: relative;
}
.top_nav .top_right_menu .ico_envelope a i{
    position: absolute;
    font-size: 35px;
    top:12px;
    left:18px;
    color: #2A3F54;
}
.top_nav .top_right_menu .e_div{
    background: #fff;
    width: 360px;
    position: absolute;
    right: 140px;
    top: 60px;
}
.top_nav .top_right_menu .e_div .e_Ul a{
    text-decoration: none;
}
.top_nav .top_right_menu .e_div ul li{
    top:60px;
    background: #EDEDED;
    width: 350px;
    margin: 6px 2px 5px 6px;
}
.top_nav .top_right_menu .e_div ul li .ico_user{
    font-size:15px;
}
.top_nav .top_right_menu .e_div ul li .user_text{
    font-size: 12px;
}
.top_nav .top_right_menu .user_nav{
    width: 120px;
    height: 60px;
    float: right;
    position: relative;
}
.top_nav .top_right_menu .user_nav .user_head a i{
    position: absolute;
    top:10px;
    left:0;
    font-size:35px;
    color: #2A3F54;
}
.top_nav .top_right_menu .user_nav .user_head a i span{
    font-size: 15px;
    display: block;
    margin: -22px 0 0 50px;
}
.top_nav .top_right_menu .user_nav .user_name{
    width: 120px;
    background: #FFFFFF;
    bottom:-88px;
    right: 10px;
    position: absolute;
}
.top_nav .top_right_menu .user_nav .user_name a{
    font-size: 16px;
    text-decoration: none;
}
.top_nav .top_right_menu .user_nav .user_name a:hover{
}

.top_nav .top_left_menu{
    transition: all linear 0.5s;
    height: 100px;
}
.ng-hide {
    height: 0;
}



/*当页面大于1200px时候，大屏幕，主要PC端*/
@media(min-width:1200px){

}
/*在992和1199像素之间的屏幕，中等屏幕，分辨率低于PC*/
@media(min-width: 992px) and (max-width: 1199px){
    .nav_navigation{
        float: left;
        background: #EDEDED;
        border-bottom: 1px solid #D9DEE4;
        width: 100%;
    }
    .top_nav .top_left_menu{
        display: block;
    }
    .top_nav .top_left_menu a i {
        font-size: 30px;
        left: 14px;
        top:18px;
    }
    .top_nav .top_right_menu{
        width:180px;
        height:60px;
        float: right;
        position: relative;
    }
    .top_nav .top_right_menu .ico_envelope a i{
        position: absolute;
        font-size: 30px;
        top:12px;
        left:70px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu{
        width:100px;
        height:60px;
        float: right;
        position: relative;
    }
    .top_nav .top_right_menu .ico_envelope a i{
        position: absolute;
        font-size: 30px;
        top:22px;
        left:-50px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu .user_nav .user_head a i{
        position: absolute;
        top:20px;
        left:20px;
        font-size: 30px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu .user_nav .user_head a i span {
        font-size: 15px;
        display: block;
        margin: -16px 0 0 37px;
    }

}

/*在768px和991px像素之间，中等屏幕，主要是PAD*/
@media(min-width: 768px) and (max-width: 991px){
    .nav_navigation{
        float: left;
        background: #EDEDED;
        border-bottom: 1px solid #D9DEE4;
        width: 100%;
    }
    .top_nav .top_left_menu{
        display: block;
    }
    .top_nav .top_left_menu a i {
        font-size: 25px;
        left: 14px;
        top:20px;
    }
    /*-----------------------------*/
    .top_nav .top_right_menu{
        width:100px;
        height:60px;
        float: right;
        position: relative;
    }
    .top_nav .top_right_menu .user_nav .user_head a i{
        position: absolute;
        top:20px;
        left:24px;
        font-size: 25px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu .user_nav .user_head a i span {
        font-size: 15px;
        display: block;
        margin: -16px 0 0 30px;
    }
    .top_nav .top_right_menu .ico_envelope a i {
        position: absolute;
        font-size: 25px;
        top: 22px;
        left: -38px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu .e_div {
        background: #fff;
        width: 250px;
        position: absolute;
        right: 140px;
        top: 60px;
    }
    .top_nav .top_right_menu .e_div ul li {
        top: 60px;
        background: #EDEDED;
        width: 240px;
        margin: 6px 2px 5px 6px;
    }
}

/*在小于480和767像素之间的屏幕，超小屏幕，主要手机*/
@media(min-width: 480px) and (max-width: 767px){
    .nav_navigation{
        float: left;
        background: #EDEDED;
        border-bottom: 1px solid #D9DEE4;
        width: 100%;
    }
    .top_nav .top_left_menu{
        display: block;
    }
    .top_nav .top_left_menu a i {
        font-size: 20px;
        left: 14px;
        top:22px;
    }
    /*-------------------------*/
    .top_nav .top_right_menu{
        width:100px;
        height:60px;
        float: right;
        position: relative;
    }
    .top_nav .top_right_menu .user_nav .user_head a i{
        position: absolute;
        top:20px;
        left:42px;
        font-size: 20px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu .user_nav .user_head a i span {
        font-size: 15px;
        display: block;
        margin: -16px 0 0 22px;
    }
    .top_nav .top_right_menu .ico_envelope a i {
        position: absolute;
        font-size: 20px;
        top: 22px;
        left: -38px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu .e_div {
        background: #fff;
        width: 200px;
        position: absolute;
        right: 140px;
        top: 60px;
    }
    .top_nav .top_right_menu .e_div ul li {
        top: 60px;
        background: #EDEDED;
        width: 190px;
        margin: 6px 2px 5px 6px;
    }

}
/*在小于480像素屏幕，微小屏幕，更低分辨率的手机*/
@media(max-width: 479px){
    .nav_navigation{
        float: left;
        background: #EDEDED;
        border-bottom: 1px solid #D9DEE4;
        width: 100%;
    }
    .top_nav .top_left_menu{
        display: block;
    }
    .top_nav .top_left_menu a i {
        font-size: 20px;
        left: 14px;
        top:22px;
    }
    .top_nav .top_right_menu{
        width:100px;
        height:60px;
        float: right;
        position: relative;
    }
    .top_nav .top_right_menu .ico_envelope a i{
        position: absolute;
        font-size: 20px;
        top:22px;
        left:18px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu .user_nav .user_head a i{
        position: absolute;
        top:20px;
        left:42px;
        font-size: 20px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu .user_nav .user_head a i span {
        font-size: 15px;
        display: block;
        margin: -16px 0 0 22px;
    }
    .top_nav .top_right_menu .ico_envelope a i {
        position: absolute;
        font-size: 20px;
        top: 22px;
        left: -38px;
        color: #2A3F54;
    }
    .top_nav .top_right_menu .e_div {
        background: #fff;
        width: 200px;
        position: absolute;
        right: 140px;
        top: 60px;
    }
    .top_nav .top_right_menu .e_div ul li {
        top: 60px;
        background: #EDEDED;
        width: 190px;
        margin: 6px 2px 5px 6px;
    }
}
